[Protection against the olive moth Prays oleae (Bern.), in organic olive growing [Portugal]]
2003
Torres, L.M. (Tras-os-Montes e Alto Douro Univ., Vila Real (Portugal)) | Bento, A.A. | Pereira, J.A. (Escola Superior Agraria, Braganca (Portugal))
With a surface representing more than 30% of all the surface certified in ecological agriculture in Portugal, the cultivation of the olive, Oleae europaea L., has also high potentiality of increasing in the country. However, to achieve this potentiality, innovation should be targeted, in order to ensure a model of olive production profitable and attractive to the farmers. The strategy for this innovation should have in mind the control of pests and diseases, which can seriously damage the production. One of the most important pests of olive in the Mediterranean basin, is the olive moth, Prays oleae (Bern.), insect which passes through three generations per year, attacking successively flowers, fruits and leaves and causing significant dammage and crop loss. In this paper a review is presented on the main strategies of control, wich are either available or implemented, against this pest in ecological olive production. The conservation and maximum use of naturally occurring biological control agents is emphasised. By other hand the role of sprays with the microbial insecticide Bacillus thuringiensis (Berliner) against the flower generetion, is referred. Finally, progresses are reported on the use of inundative releases of chrysopids and tricogramma, and on the use of the mating disruption technique
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